Roll for bending plate metal



(No Model.) 3 Sheets-Sheet 1. R. KENT.

ROLL FOR BENDING PLATE METAL.

No.- 325,677. I Patented Sept. 8, 1885.

WITNESSES INVENTOR if: 1m ib M/b @fmt. 0 W W 101/1/ /1/ 1/ l @muun nun M N PETERS. Phalmlfllwgrlphnr, wmfi c.

(No Model.) 3 Sheets-Sheet 2.

B. KENT.

ROLL FOR BENDING PLATE METAL. No. 325,677. j atented Sept. 8, 1885.

INVENTOR ,fioh/u/ ATTORNEY (No Model.) 3 Sheets-Sheet 3. R. KENT.

ROLL FOR BENDING PLATE METAL.

Patented Sept. 8, 1885 INVENTOR fimyfm yam WM? ATTORNEY UNITED STATES PATENT tries.

ROBERT KENT, OF BROOKLYN, NEV YORK.

ROLL FOR BENDlNG PLATE METAL.

SPECIFICATION forming part of Letters Patent No. 325,677, dated September 8, 1885.

Application filed January 18, 1884.

To all whom it may concern.-

Be it known that 1', ROBERT Knrraof Brooklyn, in the county of Kings,State of New York, have invented certain Improvements in Rolls for Bending Plate Metal, of which the following is a specification.

This invention relates to that class of machinery for bending plate metal into curved forms,wliich is commonly designated as vertical plate-bending rolls.

Its object is to provide a small, strong, and effective apparatus of the kind, which will be capable of steady and noiseless motion and of more than ordinarily effective action in its operation upon the plates to be bended.

Figure l is a front elevation of the apparatus embracing my said invention. Fig. 2 is a top view of the same. Fig. 3 is a horizontal sec tional view taken in thelinema: of Fig. 1. Fig. 4 is a horizontal sectional view taken inthe line y y of Fig. 1. Fig. 5 is a vertical sectional view taken in the line z z of Fig. 2. Fig. 6 is anothersectional view, taken in the line '0 o of Fig. 5. Fig. 7 is a sectional view of certain parts, also shown in Fig. 3, taken in line a a of said Fig. 3.

A, B, and O are three rolls, and D and E are respectively the upper and lower parts of the strong frame which supports the working of the apparatus.

The roll A has its upper end working in suitable bearings in the upper part, D, of said frame. The journal of said roll A, at the lower end thereof, is provided with a spurpinion, a, and works in a suitable bearing in the frame F, the lower end thereof resting on a suitable bearing, Q, as shown in Figs. 1 and 7. The said roll A is vertically-that is to say, longitudinallygrooved, in order that it may more effectually grip upon the surface of the sheet metal passed in contact therewith. during the bending of the said sheet metal, as hereinafter set forth.

The roll B has its upper end supported in a hearing at b, the said upper end of the roll B being of the same diameter as the main portion thereof, in order that the said roll may be elevated longitudinally from its place on occasion by means of a bail or handle, a, at its upwardly-projecting extremity. The lower end of said roll B works through a suitable (No model.)

bearing in the lower part, E, of the frame of the machine, and is provided with a squared shank, d,which fits into a corresponding socket formed. axially in the spur-pinion a, which gears with thespur-pinion a,so that the rotation of the said spur-pinion'a in the turning of the roll A will produce a corresponding rotation in the opposite direction of the roll B. From the spur-pinion e extends upward through the frameE a sleeve, a, as indicated in Fig. 7 and into the squared interior ofthis sleeve fits the square shank d of said roll, so that the outside of the sleeve forms the bearing for roll B. The spur-wheel is kept in place by a suitable key. At in is a strap placed under the spur-pinion eto prevent its falling down when the roll B is lifted out of its place.

Upon the shaft o'rjournal of the roll A, be low the spur-pinion a, is a bevel-wheel, e, into which gears aworm, f, on the horizontal shaft F, which works in suitable bearings provided in the frame of the machine, and which has at one end suitable pulleys for giving rotation in the requisite direction to the shaft F, as indicated in G G G.

The roll 0 has its bearings in boxes placed in slot-sg h in the parts D E of the frame,whieh said boxes are operated by two screw-shafts, H and I. These screw-shafts are provided with nuts L, which work in suit ble bearings, N, arranged in respectively the upper and lower parts,Dand E,of the frame, and are pro vided with shoulders at and n, the purpose of which is to keep the nuts from moving in lengthwise direction. Said nuts form the hubs of the bevel-wheels J.

A vertical shaft, (3*, supported in bearings a b, is provided with two pinions, 1', one of which gears into the upper bevel-wheel, J, while the other gears into the lowermost of the said bevelgears J. The said shaft G is provided with radial arms, whereby it may be turned in one direction or the other at will, so that by turning the said shaft in one direction or the other a horizontal movement may be transmitted to the roll Oto change its distance from and relation to the other rolls, A B. By this arrangement of parts the roll is fed uniformly at top and bottom to the other rolls, A B, as just explained.

In performing what is termed coneshaped work, one or the other of the pinions r is thrown out of gear with its adjacent bevelgear J, according as the cone has to be inverted or otherwise. To provide for this throwing out of gear of either bevel-pinion the pinions are attached to the shaft by means of the usual spline and groove. The prolonged part of the hub of each of said pinions is provided with a circumferential groove, 1), in which works the fork-shaped end of a suitable lever, 10, arranged to actuate the same.

The sheet metal is fed into the machine from the rear side, as indicated by the arrow in Fig. 3, and in those cases where it is bent into aeylindrical form, thereby being passed around the roll B, the latter is elevated by the shackle or bail c, as hereinbefore explained, thereby permitting the removal of the sheet-metal cylinder.

What I claim as my invention is 1. In vertical platebending rolls, so called, the longitudinally-grojoved roll A, and the vertically-removable r011 B, in combination with the top and bottom bearings, gearing for rotating the rolls A B in unison, the roll 0, and a screw for adjusting the roll Gin a horizontal direction, all substantially as and for the purpose herein set forth.

2. The combination of the worm-shaft F, worm wheel 6, pinions a and e, shaft G", bevel-pinions r, bevel-gears J, and screw-shafts H and I, in combination with the slotted top and bottom portions, D and E, of the frame, the vertical rolls A B, the vertical roll 0, and the sliding bearings of said roll 0, all substan- 3 5 tially as and for the purpose herein set forth.

ROBERT KENT.

W'itnesses:

RUDOLF H. RJELLMAN, J OHN H. FISHER. 

